Load Specifications
Load data in caliber .30-30 Ackley Improved with .308 | 150gr | Speer Grand Slam bullet and 39 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Alliant AR-Comp, Hodgdon H322 and Norma 202.
Important Notice: DO NOT go below Minimum Charge or above Maximum Charge. Since we have no control over the equipment and components used, any responsibility and liability for the results achieved is rejected.
Only powders/loads that match the current filter criteria are displayed: max pressure of a load ≤ 90% of max. standardized pressure, fill rate ≥ 80% and propellant combustion ≥ 95%. Use the sliders above the tables to adjust these thresholds.
Charge: Powder weight in grains. Start with the minimum load and work up carefully.
FR (Fill Rate): Case fill as a percentage. Values above 100% mean compressed loads.
MaxP / %: Maximum chamber pressure in bar and as a percentage of the standardized maximum for this caliber.
V(0): Muzzle velocity in feet per second (fps) at the standardized barrel length.
z (Powder Burn): Estimated propellant combustion percentage at bullet exit.
A valid access license is required to use the Personalized Load Calculator.
You can find more information in our FAQ: How can I use the Personalized Load Calculator?
Max Load - Barrel Length: 24"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2015 | <<locked>> | 94% | 41,394 psi | 89% | 2356 fps | 99.4% |
| Accurate 2460 | <<locked>> | 90% | 39,697 psi | 86% | 2343 fps | 96.8% |
| Accurate 2495ᴾ | <<locked>> | 100% | 37,985 psi | 82% | 2369 fps | 99.3% |
| Accurate 2520 | <<locked>> | 96% | 40,292 psi | 87% | 2402 fps | 96.5% |
| Accurate 4064ᴾ | <<locked>> | 100% | 35,375 psi | 76% | 2333 fps | 96.6% |
| Accurate LT-30 | <<locked>> | 84% | 40,074 psi | 86% | 2251 fps | 98.1% |
| Accurate LT-32 | <<locked>> | 84% | 40,466 psi | 87% | 2254 fps | 96.2% |
| ADI AR 2207 | <<locked>> | 82% | 39,407 psi | 85% | 2303 fps | 100% |
| ADI AR 2219 | <<locked>> | 86% | 39,740 psi | 86% | 2362 fps | 98% |
| Alliant AR-Comp | <<locked>> | 96% | 40,466 psi | 87% | 2415 fps | 100% |
| Alliant Reloder-10x | <<locked>> | 88% | 39,842 psi | 86% | 2346 fps | 99.7% |
| Alliant Reloder-7 | <<locked>> | 82% | 40,741 psi | 88% | 2303 fps | 99.9% |
| Baschieri & Pellagri 106 | <<locked>> | 86% | 40,625 psi | 88% | 2280 fps | 98.5% |
| Hodgdon H322 | <<locked>> | 92% | 40,524 psi | 87% | 2375 fps | 98.1% |
| Hodgdon H335 | <<locked>> | 88% | 41,843 psi | 90% | 2398 fps | 97.5% |
| Hodgdon H4198 | <<locked>> | 84% | 41,495 psi | 89% | 2287 fps | 97.8% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 32,082 psi | 69% | 1503 fps | 100% |
| IMR 3031ᴾ | <<locked>> | 100% | 39,682 psi | 86% | 2415 fps | 98.7% |
| IMR 4198 | <<locked>> | 88% | 41,626 psi | 90% | 2329 fps | 100% |
| Lovex D073.4 | <<locked>> | 84% | 40,030 psi | 86% | 2352 fps | 96.1% |
| Lovex D073.6 | <<locked>> | 98% | 39,929 psi | 86% | 2395 fps | 96.4% |
| Norma 200 | <<locked>> | 84% | 39,479 psi | 85% | 2323 fps | 99.9% |
| Norma 202 | <<locked>> | 98% | 41,930 psi | 90% | 2405 fps | 97.6% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 31,792 psi | 69% | 1535 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 90% | 40,814 psi | 88% | 2356 fps | 96.1% |
| Rottweil R 901 | <<locked>> | 94% | 41,075 psi | 89% | 2356 fps | 97.1% |
| Shooters World AR Plus | <<locked>> | 84% | 40,030 psi | 86% | 2352 fps | 96.1% |
| Shooters World Match Rifle | <<locked>> | 98% | 39,929 psi | 86% | 2395 fps | 96.4% |
| SNPE Vectan SP 10 | <<locked>> | 86% | 40,161 psi | 87% | 2365 fps | 97% |
| SNPE Vectan SP 3 | <<locked>> | 88% | 40,379 psi | 87% | 2343 fps | 98.8% |
| SNPE Vectan Tubal 3000 | <<locked>> | 94% | 40,306 psi | 87% | 2287 fps | 96.9% |
| SNPE Vectan Tubal 5000ᴾ | <<locked>> | 100% | 38,754 psi | 84% | 2274 fps | 97.6% |
| Somchem S335 | <<locked>> | 96% | 41,394 psi | 89% | 2329 fps | 98.1% |
| Vihtavuori N120 | <<locked>> | 86% | 41,829 psi | 90% | 2297 fps | 100% |
| Vihtavuori N130 | <<locked>> | 90% | 39,465 psi | 85% | 2287 fps | 99.6% |
| Vihtavuori N133 | <<locked>> | 98% | 41,278 psi | 89% | 2326 fps | 99.3% |
| Vihtavuori N135ᴾ | <<locked>> | 100% | 39,378 psi | 85% | 2372 fps | 99.4% |
| Vihtavuori N140ᴾ | <<locked>> | 100% | 41,742 psi | 90% | 2375 fps | 97.8% |
| Vihtavuori N540ᴾ | <<locked>> | 100% | 41,582 psi | 90% | 2398 fps | 97.4% |
Recommended = one of the top powders for this cartridge and bullet combination.
Start Load - Barrel Length: 24"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2015 | <<locked>> | 80% | 26,513 psi | 57% | 2060 fps | 95.5% |
| Accurate 2460 | <<locked>> | 86% | 34,606 psi | 75% | 2251 fps | 95.2% |
| Accurate 2495 | <<locked>> | 88% | 25,237 psi | 54% | 2106 fps | 95.7% |
| Accurate 2520 | <<locked>> | 94% | 37,724 psi | 81% | 2356 fps | 95.8% |
| Accurate 4064 | <<locked>> | 96% | 31,038 psi | 67% | 2244 fps | 95.1% |
| Accurate LT-30 | <<locked>> | 80% | 35,317 psi | 76% | 2165 fps | 96.9% |
| Accurate LT-32 | <<locked>> | 82% | 38,058 psi | 82% | 2211 fps | 95.5% |
| ADI AR 2207 | <<locked>> | 80% | 36,854 psi | 79% | 2260 fps | 100% |
| ADI AR 2219 | <<locked>> | 80% | 32,605 psi | 70% | 2221 fps | 95.8% |
| Alliant AR-Comp | 27.5 gr | 80% | 24,729 psi | 53% | 2073 fps | 97.2% |
| Alliant Reloder-10x | <<locked>> | 80% | 30,951 psi | 67% | 2175 fps | 98.3% |
| Alliant Reloder-7 | <<locked>> | 80% | 38,595 psi | 83% | 2267 fps | 99.8% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 33,431 psi | 72% | 2149 fps | 96.7% |
| Hodgdon H322 | 28.9 gr | 84% | 31,444 psi | 68% | 2195 fps | 95.4% |
| Hodgdon H335 | <<locked>> | 82% | 33,881 psi | 73% | 2251 fps | 95.1% |
| Hodgdon H4198 | <<locked>> | 80% | 36,927 psi | 80% | 2208 fps | 96.7% |
| Hodgdon TrailBoss | <<locked>> | 80% | 23,583 psi | 51% | 1342 fps | 100% |
| IMR 3031 | <<locked>> | 90% | 29,182 psi | 63% | 2195 fps | 95.4% |
| IMR 4198 | <<locked>> | 80% | 32,764 psi | 71% | 2169 fps | 99.2% |
| Lovex D073.4 | <<locked>> | 82% | 37,536 psi | 81% | 2306 fps | 95.3% |
| Lovex D073.6 | <<locked>> | 96% | 37,376 psi | 81% | 2349 fps | 95.7% |
| Norma 200 | <<locked>> | 80% | 35,114 psi | 76% | 2244 fps | 99.5% |
| Norma 202 | 32.1 gr | 92% | 34,693 psi | 75% | 2274 fps | 95.6% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 23,177 psi | 50% | 1368 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 88% | 38,334 psi | 83% | 2313 fps | 95.4% |
| Rottweil R 901 | <<locked>> | 88% | 34,490 psi | 74% | 2231 fps | 95.1% |
| Shooters World AR Plus | <<locked>> | 82% | 37,536 psi | 81% | 2306 fps | 95.3% |
| Shooters World Match Rifle | <<locked>> | 96% | 37,376 psi | 81% | 2349 fps | 95.7% |
| SNPE Vectan SP 10 | <<locked>> | 82% | 35,201 psi | 76% | 2270 fps | 95.5% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 31,372 psi | 68% | 2169 fps | 96.4% |
| SNPE Vectan Tubal 3000 | <<locked>> | 90% | 35,752 psi | 77% | 2205 fps | 95.6% |
| SNPE Vectan Tubal 5000 | <<locked>> | 92% | 30,676 psi | 66% | 2116 fps | 95% |
| Somchem S335 | <<locked>> | 88% | 32,401 psi | 70% | 2165 fps | 95.7% |
| Vihtavuori N120 | <<locked>> | 80% | 34,664 psi | 75% | 2185 fps | 100% |
| Vihtavuori N130 | <<locked>> | 80% | 29,196 psi | 63% | 2087 fps | 97.4% |
| Vihtavuori N133 | <<locked>> | 84% | 27,485 psi | 59% | 2054 fps | 95.6% |
| Vihtavuori N135 | <<locked>> | 86% | 25,614 psi | 55% | 2080 fps | 95.1% |
| Vihtavuori N140 | <<locked>> | 92% | 32,590 psi | 70% | 2205 fps | 95.1% |
| Vihtavuori N540 | <<locked>> | 94% | 34,287 psi | 74% | 2264 fps | 95.2% |
Recommended = one of the top powders for this cartridge and bullet combination.
ᴾ possible press load - work up slowly to this load while watching for signs of excessive pressure.
This overview compares 71 powders for .30-30 Ackley Improved loaded with the .308 | 150gr | Speer Grand Slam. Alliant Power Pro 1200-R delivers the highest muzzle velocity at 2,425 fps; across all powders the maximum-charge window runs from 1,503 fps to 2,425 fps. Accurate 2495 gives the best case fill at 100 %, and 71 of the 71 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (320 MPa), the top charges use 69–90 %, leaving at least 10 % headroom. The 150.0 gr projectile in 0.308" calls for a 1:16.0 twist; slower twists will usually not stabilise this weight. Accurate 2495, Accurate 4064, Alliant Reloder- TS 15.5 reach 100 % fill or more at maximum charge, so these are compressed loads: they need a long drop tube to seat cleanly and react sensitively to the case capacity of your own brass lot. Alliant AR-Comp, Hodgdon H322, Norma 202 rank at the top here: for .30-30 Ackley Improved with the .308 | 150gr | Speer Grand Slam they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, Accurate 2230, ADI AR 2206H, ADI Benchmark 8208 burn incompletely and react more sensitively to barrel length and temperature. Always begin at the start load and work up in small increments while checking case and primer for pressure signs.